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Heavy Metal(loid) Body Burden in Environmentally Exposed Children With and Without Internalizing Behavior Problems.

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This summary is machine-generated.

Environmental exposures like zinc and zirconium may contribute to internalizing disorders in children. Sex differences play a role, with males showing effects from zinc and copper exposure near power plants.

Keywords:
BiomarkersChildren’s environmental healthCoal ashHeavy metal(loid)sInternalizing behaviorsNeurotoxicity

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Area of Science:

  • Environmental health
  • Child psychology
  • Toxicology

Background:

  • Increasing prevalence of childhood internalizing disorders (anxiety, depression).
  • Potential neurotoxic effects of environmental exposures are understudied.
  • Children near coal-burning power plants face unique exposure risks.

Purpose of the Study:

  • To investigate the relationship between metal(loid) exposure and internalizing behaviors in children.
  • To explore potential sex differences in environmental neurotoxicity.

Main Methods:

  • Multivariate logistic regression analysis.
  • Metal(loid)s analyzed in nail samples using Proton-Induced X-ray Emission.
  • Internalizing behaviors assessed via parent ratings on the Child Behavior Checklist.

Main Results:

  • Metal(loid) concentrations in nails differed between children with and without internalizing behaviors.
  • Zinc and imputed zirconium exposure associated with internalizing behaviors.
  • Sex-metal(loid) interactions revealed sex-specific effects (zinc, copper) and highlighted traffic exposure's association.

Conclusions:

  • Environmental exposures, particularly zinc and zirconium, warrant further investigation in childhood internalizing disorders.
  • Sex differences are crucial in understanding environmental neurotoxicity.
  • Traffic exposure is linked to increased risk.